Filters

Sequencer

FX

CV Processing

LFO

Envelope

3x1 Mixer 9B functions similarity to the Dual Mixer 27B except that
it is a single mixer. A few extra features have been added to extend the functionality
of this simple module.

Polarity toggle switch selects the mode for the input level control knobs. In Uni-polar
mode the level knobs work as positive only attenuators. This is best for audio signals where the capabilty of having a fully off channel is desired.
Bi-polar mode changes the controls to be both inverting and non-inverting
with zero in the mid position. This mode is ideal for processing control voltages
as it allows easy selection of polarity.